Some Internet providers have different rates for different capacities/bandwidth. Last time I used COMCAST, their wizard walked you through different use-cases and you got different packages based on the type of stuff you said you used it for.
(It is possible that the landlord will note that you ticked the WFH box, and spend part of the extra $200/mo on upgrading the broadband at the property to 900 Mbit/sec fibre or whatever. But I just don't think this very likely.)